Improved rubber roller for wringers



No. 104i26. PATENTED JUNE 23, 1870. 11.11; CHAMBERLAIN. RUBBER ROLLER FOR WRINGBRS, 8w.

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Letters Patent No. 104,826, dated June 28. 1870. v

IMPROVED RUBBER ROLLER :r'on WRINGERS; 8w.

The Schedule referred to in these Letters Patent and makingpart of the same To all persons to whom these presents shall come:

Be it known that I, DEXTER H. CHAMBERLAIN, ofWest Roxbury, count-y of Norfolk and State of Massachusetts, have invented a certain new and useful Improvement in Mode-of Securing India Rubber .to Shafts, 8m; and that the following is a fulLand exact description of the same,- reforence being bad to the accompanying drawing. r

The present invention relates to securing India rubber, or equivalent material,"to shafts of wringerrolls more particularly, although it is susceptible of adaptation for fastening rubber to shafts for other rolls, and to the frictional gearing described and embraced, in the schedule annexed to the Letters Patent issued to me the 22d day of March, A. D. 1870, numbered 100,977, as well as to other purposes.

The object sought to be obtainedin the present in vention is to overcome the efi'ect of pressure on the rubber, to loosen the rubber from the shaft, causing, finally, such a separation of the two, that is, the shall. andthe rubber, that the one will turn or move within the other.

The invention consists in securing the rubber to the shaft, 860., by dogging, if it may be so termed, the one to the other with the dog connection, suit-v ably constructed to move in, with pressure, on the rubber, while'a-t the same time the shaft and rubber will turn as-one. v

In the accompanying drawing, my improved mode of securing India rubber to shafts, 8m, is illustrated,

Figure 1 being an end view of a roll, having its rubber secured according thereto- Figure 2, a longitudinal section through the rubber, with the central shaft in side view.

Figure 3, a transverse vertical section in plane of line'a: it, fig. 1. r

Figure 4 is a view showing uiodificatiointo be hereafter referred to. e

A, in the drawing, represent-s a shaft, and B rubher surrounding the same fora portion of its length, the two'forming a roll,'G. i

D, head-plates, keyed or otherwise fastened to shaft A, against the ends of the rubber B.

' E, radial slots. in head-plates D.

F, pins or rods ii'nbedded and arranged in the rubber B, from end to end,-in parallel lines,-or nearly so, to'its axis, said pins projecting fromeach end of the rubber into the said radial slots of the head-pl ates D. By these pins orrods hthe rubber is dogged to the head-plates D, and, as they are keyed to the shaft, it is obvious, in turning the shaft, the rubber is carried with it, the whole turning as one.

With pressure on the rubber rollG, as, for instance,

when used as a wringer-roll for clothes, the mill, ex-

tended through the rubber at the point where such pressure is acting, moves in with it, playing in the radial slots E, the several rods 1? being thus pressed in with the rubber, as the part of the rubber in which they are respectively located'is pressed upon in the turning of the roll.

The rods F, with radial slots, may be more or less in number, but it is best that they shouldbc located s uilicientlyclose together, consistent with the strength and sizeof the roll, to secure theaction above de- "scribed at as many points .of the rubber, in the turning of the roll, as is possible. I

To accommodate, if desired, the dog connection to alateral movement of the rods F, the slots areprovided with side passages, as'showuat a.

This lateral movement of the pins occurs more especially, and is the. most observable, in connection with the pins each side of the point where pressure is on the ruhber,as,for instance, suppose pressure to be on the rubberatM, the dog-pins each side of such point will bem'ore or less moved laterally, in conse quence ofsuch pressure. p

In fig. 4 I show-a modification, wherein, between the two ends of the rubber'B, ahead-plate, slotted as described for the head-plates D, may be located, and

each pinmade in two parts, moving in the end head plate slots, and the slots of the intermediat hcadplate, with the edge of such intermediate head-plate covered and encased with rubber, as shown, or not.

It may be remarked that, as between my improved mode of securing India rubber to shafts, 850., as herein described, and the modes heretofore employed and practiced, thedistinctive. feature'is in thefact that, in the latter, the fastening resists the pressure on the rubber, while, in the presentimprovement, the fastening moves in with the same, or, in other-words, it ad-- jhsts itself to suchpressure; 1

Havingthus described my improved mode of securing India rubber to' shafts, 850., What 1 claim as'my invention, and desire to'secure by Letters Patent, isf 7 A'roll, 8m, of India rubber, or-equivalent material,

secured to its shaft by a fasteningwhich is s usceptibio of movement by pressure on the rubber, through the medium of-rods playing in openings in the headplates, substantially as described.

The above specification 'ot1-,my invention signed by me this'23d day of February, A. D. 1870.

' D. H. GHAMBER-LAlN; Witnesses! ALBERT W. Bnowx,

Eownr W. 'Bnowx. 

